I know a little old, but there are a handful of shops that sell switches to fit in those spots. Probably buy the Toyota seat warmer dials if you are going to wire seat warmers.
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Ford Explorer - Jeep Liberty Renegade - GMC Yukon Denali - Hummer H2 - Ford Raptor SVT - BMW M6 - Suzuki Jimny - Mazda Demio - Daihatsu Naked - Will Cypha - Toyota 4Runner TRD ORP - Toyota RAV4 Limited Hybrid
There’s a thread I remember reading a couple years ago about installing an aftermarket heated seats kit, with switches that fit the blanks. The kit was less than $150 online. The thread had a how to with plenty of photos. Looks easy and I’d love to do this on my ‘18 SR5, but removing and replacing the upholstery looks above my pay grade, so I haven’t jumped. No upholstery shop in my small, isolated town either.
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Dave
~When You Live in Nevada, "just down the road" is anywhere in the line of sight within the curvature of the earth.